How to convert json to php array object?

How to convert json to php array object: First, the front-end js converts the object to json, the code is [var rows = JSON.stringify(rows);]; then the back-end php receives and converts it into an array, the code is 【if(count($uploadfiles) !=0)】.

Method of converting json to php array object:

Convert front-end js to json and pass it to php back-end, php Received in the background and converted into an array.

Effect:

Front-end js converts the object to json:

var rows = JSON.stringify(rows);

Backend php receives Convert to an array:

$uploadfiles = json_decode(stripslashes($_POST['uploadfile']), true);
 
if(count($uploadfiles) != 0){
    echo '有数据:';
    echo count($uploadfiles);
} else {
    echo '没有数据！';
}

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